How can I make a battery powered color organ?
I want to make a color organ to use for the Venetian Boat Parade next year, but I want to do it on the dinghy, and I won't have access to a 120 volt AC source. So, I want to know if I could make a color organ powered by a 12 volt battery or something similar. I have scoured the internet, and I can't find a circuit that would work for my purposes. I want it to be able to power strings of lights, and that's pretty much it.